﻿using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Cshap学习
{
    class Program
    {
        static void Main(string[] args)
        {
            File.AppendAllText(@"D:\Desktop\1234.txt", "追加测试冷建发");
            Console.WriteLine("ok");
            Console.ReadKey();
        }
    }
}
